Removed telephony call_delay setting as it did nothing

Change-Id: If18e85bf07c263030800ceb0f0440c400c5566e5
build.prop: Added wpa_supllicant_scan_interval=30 and cleaned up whitespace

Change-Id: If8097fce1ac60ca8515505c1c4200963cc71dfdf
Actually, don't use the wpa_supplicant_scan_interval setting until i have a real reason to.

Change-Id: Ibddbd7719d0c6c6315f75e955329b4c7df226b09